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71. 发明公开

EP3349907A1 METHODS AND SYSTEMS FOR RECOVERING PRODUCTS FROM IRON AND STEEL SLAG 有权
公开(公告)号：EP3349907A1
公开(公告)日：2018-07-25
申请号：EP16847563.0
申请日：2016-09-19
申请人： The Trustees of Columbia University in the City of New York
发明人： PARK, Ah-Hyung, Alissa , ZHOU, Xiaozhou
IPC分类号： B02C23/14 , B03B7/00 , C22B7/04
CPC分类号： C22B59/00 , B03C1/02 , B03C2201/20 , C22B1/248 , C22B7/04 , C25B1/16 , C25B1/26 , Y02P10/212 , Y02P20/20
摘要： Systems and methods for processing slag produced by iron and steel making processes are disclosed. The slag is treated produce a series of valued industrial products, such as metal oxides, metal carbonates, rare-earth metals, and water glass. The systems and methods also integrate slag processing with CO2 sequestration and flue gas desulphurization. Processing slag minimizes the land use for stockpiling or landfilling wastes produced from iron and steel making processes and protects the ground water underneath. Overall, the solid and gaseous emissions of an energy-intensive and highly polluted industrial process have been largely reduced, recycled and valorized in order to achieve a near zero-emission goal.

72. 发明公开

EP3342887A1 SCANDIUM OXIDE MANUFACTURING METHOD 审中-公开
公开(公告)号：EP3342887A1
公开(公告)日：2018-07-04
申请号：EP16841237.7
申请日：2016-06-16
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： MATSUMOTO, Shin-ya , KOBAYASHI, Hiroshi , NAGAI, Hidemasa , HIGAKI, Tatsuya
IPC分类号： C22B59/00 , C01F17/00 , C22B1/04 , C22B3/08 , C22B3/44
CPC分类号： C22B59/00 , C01F17/0043 , C01P2006/80 , C22B1/04 , C22B3/08 , C22B3/44 , Y02P10/234
摘要： Provided is a scandium oxide manufacturing method, which is capable of manufacturing scandium oxide with limited sulfur component content when obtaining scandium oxide from scandium oxalate that comprises sulfur-containing compounds as impurities. This scandium oxide manufacturing method heats scandium oxalate that comprises sulfur-containing compounds as impurities in the presence of a carbon source. The amount of oxygen present when performing the heat treatment is preferably less than the amount necessary for oxidation of all of the carbon atoms contained in the carbon source to carbon dioxide. For the scandium oxalate, a precipitate obtained by adding oxalic acid to a sulfuric acid-acidified solution containing scandium is preferred. Said sulfuric acid-acidified solution is preferably a solution obtained by adding a neutralizing agent to a leachate obtained by leaching nickel oxide ore with sulfuric acid.

73. 发明授权

EP2971197B1 A METHOD FOR EXTRACTING RARE-EARTH METALS 有权
标题翻译：一种提取稀土金属的方法
公开(公告)号：EP2971197B1
公开(公告)日：2018-04-11
申请号：EP13876923.7
申请日：2013-11-08
申请人： Opened Joint Stock Company "United Chemical Company Uralchem"
发明人： GENKIN, Mikhail Vladimirovich , EVTUSHENKO, Aleksey Vladimirovich , KOMKOV, Aleksey Aleksandrovich , SAFIULINA, Alfiya Minerovna , SPIRIDONOV, Vasiliy Sergeevich , SHVETSOV, Sergey Vladimirovich
IPC分类号： C22B59/00 , C22B3/06
CPC分类号： C22B59/00 , C22B3/06 , C22B3/10 , Y02P10/234
摘要： The present invention relates to a method for complex processing of apatite concentrate resulting in producing concentrate of rare earth metals (REM) and plaster from phosphogypsum, a waste of sulphuric acid technology for producing phosphoric acid from apatite. The method comprises recrystallization of hemihydrate or anhydrite of calcium sulphate into dihydrate of calcium sulphate in the presence of a soluble calcium salt at concentrations of 0.075-3.75 M (in terms of Ca2+) at subacidic conditions (pH>1), and dissolution with strong acid (pKa

74. 发明授权

EP2383354B1 METHOD FOR MANUFACTURING HIGH-PURITY ERBIUM, HIGH-PURITY ERBIUM, SPUTTERING TARGET COMPOSED OF HIGH-PURITY ERBIUM 有权
标题翻译：由高纯度铒组成的高纯度铒，高纯度铒，溅射靶材的制造方法
公开(公告)号：EP2383354B1
公开(公告)日：2018-03-07
申请号：EP10735697.4
申请日：2010-01-13
申请人： JX Nippon Mining & Metals Corporation
发明人： SHINDO, Yuichiro , YAGI, Kazuto
IPC分类号： C22B59/00 , C22B9/02 , C22B9/04 , C22B9/14 , C22C28/00 , C23C14/34 , C22B5/04 , C22B5/16
CPC分类号： C22C28/00 , C22B5/04 , C22B5/16 , C22B9/006 , C22B9/14 , C22B59/00 , C23C14/3414
摘要： Provided are a method for manufacturing high-purity erbium, wherein crude erbium oxide is mixed with reducing metal, erbium is reduced and distilled by heating the mixture in a vacuum, and the distillate is melted in an inert atmosphere to obtain high-purity erbium; and high-purity erbium, wherein the purity excluding rare-earth elements and gas components is 4N or higher and the oxygen content is 200 wtppm or less. An object of this invention is to provide a method of highly purifying erbium, which has a high vapor pressure and is difficult to be refined in a molten metal state, as well as technology for efficiently and stably providing high-purity erbium obtained with the foregoing method, a sputtering target composed of high-purity erbium, and a metal gate film having high-purity erbium as a main component.

75. 发明公开

EP3276015A1 METHOD FOR RECOVERING SCANDIUM 审中-公开
标题翻译：回收钪的方法
公开(公告)号：EP3276015A1
公开(公告)日：2018-01-31
申请号：EP15886511.3
申请日：2015-12-08
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： NAGAI, Hidemasa , KUDO, Keiji , MATSUMOTO, Shin-ya , KOBAYASHI, Hiroshi , ASANO, Satoshi
IPC分类号： C22B59/00 , C22B3/08 , C22B3/24 , C22B3/44
CPC分类号： C22B3/42 , C22B3/08 , C22B3/44 , C22B59/00 , Y02P10/234
摘要： Provided is a method for recovering scandium, which enables easy and efficient recovery of high-quality scandium from an acidic solution containing scandium. According to this method for recovering scandium, an acidic solution containing scandium is used and a scandium dissolution liquid after purification is obtained by a double sulfate precipitation step including the steps [A]-[C] described below, and scandium is then recovered from the thus-obtained scandium dissolution liquid.
[A] A precipitation step wherein sodium sulfate is added into the acidic solution containing scandium, so that a precipitate of a scandium double sulfate is obtained
[B] A neutralization step wherein pure water is added to the precipitate of a scandium double sulfate obtained in the precipitation step so as to dissolve the precipitate of a scandium double sulfate therein, and scandium hydroxide is obtained by adding a neutralizing agent into the thus-obtained dissolution liquid
[C] A re-dissolution step wherein an acid is added to the scandium hydroxide obtained in the neutralization step, so that a scandium dissolution after purification, in which the scandium hydroxide is dissolved, is obtained
摘要翻译：提供了一种回收钪的方法，其能够从含钪的酸性溶液中容易且有效地回收高质量的钪。根据这种回收钪的方法，使用含有钪的酸性溶液，并通过包括下述步骤[A] - [C]的双重硫酸盐沉淀步骤获得纯化后的钪溶解液，然后从由此获得钪溶解液。 [A]在含有钪的酸性溶液中添加硫酸钠，从而得到双硫酸钪的沉淀的沉淀工序[B]中和工序，将纯水加入到在沉淀步骤以使其中的硫酸钪沉淀物溶解，并且通过将中和剂加入到由此得到的溶解液中获得氢氧化钪[C]。再溶解步骤，其中向氢氧化钪中加入酸在中和步骤中获得，从而获得其中溶解有氢氧化钪的纯化后的钪溶解

76. 发明公开

EP3249062A4 METHOD FOR RECOVERING SCANDIUM 审中-公开
公开(公告)号：EP3249062A4
公开(公告)日：2018-01-17
申请号：EP15881203
申请日：2015-12-08
申请人： SUMITOMO METAL MINING CO
发明人： YAMAGUMA RYOMA , HIGAKI TATSUYA , NAGAI HIDEMASA , ASANO SATOSHI , KOBAYASHI HIROSHI
IPC分类号： C22B59/00 , C22B3/26 , C22B3/42 , C22B3/44
CPC分类号： C22B3/42 , C22B3/22 , C22B3/44 , C22B59/00 , Y02P10/234
摘要： Provided is a method for recovering scandium with which scandium can be efficiently recovered as high purity scandium oxide from a scandium-containing solution containing impurities such as iron without causing problems such as increased cost and safety problems. According to the method for recovering scandium according to the present invention, the pH of a solution containing scandium and iron (scandium-containing solution) is adjusted within the range of not less than -0.5 and less than 1, then scandium oxalate is obtained by adding the pH adjusted solution to an oxalic acid solution, and the scandium oxalate is roasted into scandium oxide.

77. 发明授权

EP2977473B1 METHOD FOR SEPARATING IMPURITIES FROM AN ACIDIC SOLUTION CONTAINING NICKEL AND COBALT AND/OR SCANDIUM 有权
标题翻译：从含有镍和钴和/或钪的酸性溶液中分离杂质的方法
公开(公告)号：EP2977473B1
公开(公告)日：2017-12-13
申请号：EP14770382.1
申请日：2014-03-17
申请人： Kyushu University, National University Corporation , Sumitomo Metal Mining Co., Ltd.
发明人： GOTO, Masahiro , KUBOTA, Fukiko , BABA, Yuzo , OZAKI, Yoshitomo , HAYATA, Jiro , HIGAKI, Tatsuya , NAGAKURA, Toshihiko , MATSUMOTO, Shinya
IPC分类号： C22B3/26 , C22B23/00 , C22B59/00 , C22B3/38 , C22B3/44 , C22B3/00
CPC分类号： C22B59/00 , C22B3/005 , C22B3/44 , C22B23/0453 , C22B23/0461 , Y02P10/234
摘要： Provided is a method for efficiently separating nickel, cobalt and/or scandium, and impurities from an acidic solution containing impurities such as manganese, iron, zinc, and aluminum. A valuable-metal extracting agent of the present invention is expressed by general formula (1). In the formula, R 1 and R 2 each represent the same or different alkyl groups, R 3 represents a hydrogen atom or an alkyl group, and R 4 represents a hydrogen atom or a given group, other than an amino group, that bonds with an ± carbon as an amino acid. In general formula (1), the inclusion of a glycine unit, a histidine unit, a lysine unit, an asparagine acid unit, or a normal methylglycine unit is preferred.

78. 发明公开

EP3249062A1 METHOD FOR RECOVERING SCANDIUM 审中-公开
标题翻译：回收钪的方法
公开(公告)号：EP3249062A1
公开(公告)日：2017-11-29
申请号：EP15881203.2
申请日：2015-12-08
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： YAMAGUMA, Ryoma , HIGAKI, Tatsuya , NAGAI, Hidemasa , ASANO, Satoshi , KOBAYASHI, Hiroshi
IPC分类号： C22B59/00 , C22B3/26 , C22B3/42 , C22B3/44
CPC分类号： C22B3/42 , C22B3/22 , C22B3/44 , C22B59/00 , Y02P10/234
摘要： Provided is a method for recovering scandium with which scandium can be efficiently recovered as high purity scandium oxide from a scandium-containing solution containing impurities such as iron without causing problems such as increased cost and safety problems. According to the method for recovering scandium according to the present invention, the pH of a solution containing scandium and iron (scandium-containing solution) is adjusted within the range of not less than -0.5 and less than 1, then scandium oxalate is obtained by adding the pH adjusted solution to an oxalic acid solution, and the scandium oxalate is roasted into scandium oxide.
摘要翻译：提供一种回收钪的方法，利用该方法能够从含有杂质如铁的含钪溶液中有效地回收钪作为高纯度氧化钪，而不会引起诸如增加的成本和安全问题之类的问题。根据本发明的钪的回收方法，将含有钪和铁（含钪溶液）的溶液的pH值调节到不小于-0.5且小于1的范围内，然后通过以下步骤获得草酸钪：将调节了pH的溶液加入草酸溶液中，并将草酸钪焙烧成氧化钪。

79. 发明公开

EP3208352A4 METHOD FOR RECOVERING HIGH-PURITY SCANDIUM 审中-公开
公开(公告)号：EP3208352A4
公开(公告)日：2017-10-18
申请号：EP15863799
申请日：2015-11-25
申请人： SUMITOMO METAL MINING CO
发明人： MATSUOKA ITSUMI , NAGAI HIDEMASA , KUDO KEIJI , MATSUMOTO SHIN-YA , HIGAKI TATSUYA , OZAKI YOSHITOMO , SHOUJI HIROFUMI , KOBAYASHI HIROSHI
IPC分类号： C22B59/00 , C01F17/00 , C22B1/02 , C22B3/08 , C22B3/28 , C22B3/42 , C22B3/44
CPC分类号： C22B59/00 , C01F17/00 , C01F17/0043 , C22B1/02 , C22B3/001 , C22B3/08 , C22B3/42 , C22B3/44 , Y02P10/234
摘要： Provided is a method for recovering scandium, with which it is possible to easily and efficiently recover high-purity scandium from nickel oxide ores. This method for recovering scandium involves passing a solution containing scandium through an ion exchange resin, then subjecting the eluant eluted from the ion exchange resin to solvent extraction and separating the extraction residual liquid and the extraction agent after extraction, then performing an oxalation process on the extraction residual liquid to obtain a scandium oxalate precipitate, and roasting the precipitate to obtain scandium oxide, wherein the method is characterized in that an amine-based extraction agent is used as the extraction agent for solvent extraction.

80. 发明授权

EP3081670B1 SCANDIUM CONCENTRATE PRODUCTION METHOD 有权
公开(公告)号：EP3081670B1
公开(公告)日：2017-09-13
申请号：EP15740662.0
申请日：2015-01-23
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： TAKAHASHI, Jun-ichi
IPC分类号： C22B59/00 , C22C21/00 , C25C3/06 , C25C3/34 , C25C7/06
CPC分类号： C22C21/00 , C22B59/00 , C25C3/06 , C25C3/34 , C25C7/06

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